Australian Red Cross Blood Service

Iron is a mineral nutrient that is essential for your body to function normally and to make haemoglobin.(1) We can absorb iron by eating foods that contain iron.

Haemoglobin, or Hb as it is also known, is a protein that can be found in red blood cells and its primary function is to transport oxygen to the tissues in your body.(1) All tissues require oxygen to survive .Iron gives haemoglobin and therefore blood cells their red pigment.

What is the difference between iron and haemoglobin?

It is a common misconception that iron and haemoglobin is the same thing. This is incorrect. Iron is a component of haemoglobin.(1) As a result, it is possible to have a normal haemoglobin level but be lacking in iron. Iron is not just a component of haemoglobin, it is found in other parts of the body too.

What can happen if I have low iron levels? 

A low iron level is called iron deficiency. This may cause tiredness. If your iron deficiency is severe, your haemoglobin level can drop. This is called iron deficiency anaemia.

What are the symptoms of Iron Deficiency Anaemia?

Symptoms include:

• Tiredness
• Feeling faint
• Pale skin
• Easily becoming breathless

What can cause my iron levels to be low?

Low iron levels and anaemia can be caused by:(2)

• Bleeding
• Diet low in iron
• Poor iron absorption from the gut
• Heavy menstruation
• Bleeding from the gut which has no other signs
• Multiple blood donations

What should I do if I have any of these symptoms?

You should always see your doctor if you have any symptoms. Your doctor will assess your symptoms, investigate accordingly and decide if iron supplementation is the best treatment option for you. It is NOT recommended that you take over-the-counter iron supplementation without first consulting with your doctor.  Finding out and treating the cause of anaemia is very important. This will ensure serious problems are ruled out and you receive the right treatment.

If your doctor decides iron supplementation is the best treatment option for you, please be aware of the following:(3)

References

1. Australian Red Cross Blood Service. Why haemoglobin and iron are important. Australia, 2009.
2. Digestive Health Foundation. Iron Deficiency. Australia, 2011.
3. BloodSafe. Boosting your blood with iron. Australia, 2010.